<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-topbottom">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="but">{{this.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-topbottom">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hot" @click='handleCityClick(item.name)' :key="item.id">
            <div class="but">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div :ref="key" class="area border-topbottom" v-for="(item,key) of cities" :key="key">
        <div class="title">{{key}}</div>
        <div class="item-list">
          <div class="item border-bottom" @click='handleCityClick(inner.name)' v-for="inner of item" :key='inner.id'>{{inner.name}}</div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import { mapState } from 'vuex'
import Bscroll from "better-scroll";
export default {
  name: "list",
  props: {
    hot: Array,
    cities: Object,
    letter:String
  },
  methods:{
    handleCityClick:function(city){
      this.$store.dispatch('changecity',city);
      this.$router.push('/')
    }
  },
  computed:{
    ...mapState(['city'])
  },
  mounted() {
    this.scroll = new Bscroll(this.$refs.wrapper);
  },
  watch:{
    letter(){
      const ele = this.$refs[this.letter][0];
      
      this.scroll.scrollToElement(ele)
    }
  }
};
</script>>
<style lang='stylus' scoped>
.border-topbottom {
  &:before {
    border-color: #777;
  }

  &:after {
    border-color: #777;
  }
}

.title {
  line-height: 0.44rem;
  background: #eee;
  padding-left: 0.2rem;
  color: #666;
  font-size: 0.26rem;
  padding: 0.1rem 0.6rem 0.1rem 0.1rem;
}

.button-list {
  padding: 0.1rem;
  overflow: hidden;

  .button-wrapper {
    float: left;
    width: 33.33%;

    .but {
      margin: 0.1rem;
      text-align: center;
      border: 0.02rem solid #ccc;
      padding: 0.1rem 0;
      border-radius: 0.06rem;
    }
  }
}

.item-list {
  .item {
    line-height: 0.54rem;
    color: #666;
    padding-left: 0.2rem;
  }
}

.list {
  position: absolute;
  top: 1.58rem;
  left: 0;
  right: 0;
  bottom: 0;
  overflow: hidden;
}
</style>